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fix length of generated serial number descriptor

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This commit is contained in:
Jeff Epler 2021-02-22 07:33:04 -06:00
parent 144acfcb98
commit aa1de69645
1 changed files with 1 additions and 1 deletions
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supervisor/shared/usb/usb.c
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@ -62,7 +62,7 @@ void load_serial_number(void) {
uint8_t raw_id[COMMON_HAL_MCU_PROCESSOR_UID_LENGTH]; uint8_t raw_id[COMMON_HAL_MCU_PROCESSOR_UID_LENGTH];
common_hal_mcu_processor_get_uid(raw_id); common_hal_mcu_processor_get_uid(raw_id);
usb_serial_number[0] = 0x300 | MP_ARRAY_SIZE(usb_serial_number); usb_serial_number[0] = 0x300 | sizeof(usb_serial_number);
for (int i = 0; i < COMMON_HAL_MCU_PROCESSOR_UID_LENGTH; i++) { for (int i = 0; i < COMMON_HAL_MCU_PROCESSOR_UID_LENGTH; i++) {
for (int j = 0; j < 2; j++) { for (int j = 0; j < 2; j++) {
uint8_t nibble = (raw_id[i] >> (j * 4)) & 0xf; uint8_t nibble = (raw_id[i] >> (j * 4)) & 0xf;